I have a brand new 13" i5 2011 MacBook pro. In two separate tests i've charged it to full unplugged the ac adapter and shut the lid. After 48 hours I open the lid and see 40% remaining. I know there are apps like smartsleep or deepsleep that can force a hibernate instead of sleep to ram, but seriously apple this is 2011.

I have a brand new 13" i5 2011 MacBook pro. In two separate tests i've charged it to full unplugged the ac adapter and shut the lid. After 48 hours I open the lid and see 40% remaining. I know there are apps like smartsleep or deepsleep that can force a hibernate instead of sleep to ram, but seriously apple this is 2011.

Anyone else notice this?

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In what realistic scenario would you leave a laptop in sleep for 48 hours?

Anyway I don't know if that's normal since I don't have a MBP yet, plan to soon.

In what realistic scenario would you leave a laptop in sleep for 48 hours?

Anyway I don't know if that's normal since I don't have a MBP yet, plan to soon.

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Good point, although doesn't really help us here

I wouldn't know either, but having come from a 13" MBP, for periods in which i did leave it on standby for, not as long as 48 hours, but maybe overnight, the battery would go from 100-93%. Dropping to 40% might seem excessive but it probably is not.

Remember power has to be given to the ram in order to keep the contents of the drive intact. With smartsleep you can force hibernation, but outside of that I don't know much about it.

I think sleeping consumes 1/10 the juice it does on normal usage is fair don't you think?

I never power off the my 2010 MBP unless I have to. When I finish working, I just close it right down, put it right into my bag (thanks to disabling safe sleep, the hard drive stop spinning the second I close the lid), then when I need to work, I just open it up and get right to work. Just love it.

I think sleeping consumes 1/10 the juice it does on normal usage is fair don't you think?

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No freaking way. It should consume more like 1% at most as all it needs is a trickle of juice to keep the ram hot and detect wakeup conditions.

I think a recent OS upgrade may be making this worse again. I am on 10.6.7 running on a 11 inch MB Air. Of late from 7pm when it goes into the bag to about 10 am the next day drains the battery to about 8% left. That is crazy making.

I routinely do this with my 2011 2.3 i7, just as I did with my 2008 2.4 C2D. I would close the MBP on Friday afternoon after work and sometimes never touch it again until Monday morning for work again. I have never had mine dead and the worst I have seen is around 40-50% on Monday morning (depending on how much I left open when I shut the cover, shouldn't make much or a difference but for some reason it did, drained more with VMware left open). On the flip side, I have seen it be as high as 93% remaining when I opened it on Monday. I never shut my computer down unless a restart is required. Some will say it isn't good for it, but I have operated this way for years and will continue to for more to come. The sleep ability and battery retention is exactly why I purchased a MBP in the first place. For me it is a tool and I use it as such.

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